American Board of Ophthalmology (ABO) Practice Exam 2025 – The Complete All-in-One Guide to Exam Success

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What color corresponds to the shortest wavelength of visible light?

Red

Green

Blue

Violet

The color that corresponds to the shortest wavelength of visible light is violet. In the visible light spectrum, wavelengths decrease in size from red on one end to violet on the other. The range of visible light is typically from about 380 nanometers (nm) to about 750 nm in wavelength. Red light has the longest wavelength, around 620 to 750 nm, followed by green at approximately 495 to 570 nm, and blue around 450 to 495 nm. Violet light, on the other hand, has a wavelength of about 380 to 450 nm, making it the color with the shortest wavelength in the visible spectrum. This relationship between color and wavelength is fundamental in understanding light and its properties, as well as its behavior in various optical applications.

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